Compound for coating and finishing walls



UNITED STATES PATENT OFFICE.

ENOS AGUSTUS -BRONSON, OF VVYMORE, NEBRASKA.

COMPOUND FOR COATING AND FINISHING WALLS.

SPECIFICATION forming part of Letters Patent No. 346,143, dated July 27,1886.

(No specimens.)

To (ZZZ whom it may concern.-

Be it known that I, ENOS AG-USTUS BRON- SON, a citizen of the UnitedStates, residing at Wymore, in the county of Gage and State of Nebraska,have invented a new and useful Improvement in Compounds for Coating andFinishing Walls, of which the following is a speci fication.

My invention relates to a composition of matter for coating andfinishing walls; and it consists of the several ingredients compoundedin the manner and proportionshereinafter fully set forth.

The object of my invention is to provide a composition for coating andfinishing walls which shall be entirely free from lime and will notshrink, crack, or expand, and which can be applied to any character ofgroundwork of the wall or other surface which it is desired to finish,without regard to the state of the weather or the condition of thegroundwork or wall.

I have discovered that by the use of my invention a wall or ceiling isrendered rat and U vermin proof, and the particles thereof adhere soclosely together that it is impossible for them to cut or gnaw throughthe wall, and my compound is proof against moisture and frost, and isunaffected by the same, thus increasing its strength and durability.

My compound consists of the following ingredients, in substantially theproportions hereinafter specified, to wit: a vehicle of plaster-ofparis,thrcesixths; sand, two-sixths; Spanish whiting or Keenes cement,one-sixth; glue, four or five quarts; marble-dust, two quarts.

In preparing my compound for use I take three-sixths of a part of commonplasterofparis, to use it for a body or vehicle, and mix therewithtwo-sixths of the compound of fine white sand, one-sixth of whiting orKeenes cement and marble-dust. All of these ingredients are in a dry andthoroughly pulverized or ground state, and the proper quantity of glue,in a semi-fluid state, is then poured into the mass, after which theseveral ingredients are intimately commingled and mixed together byagitation, sufficient water being added to make the compound or mixtureplastic, so that it can be readily applied to a wall or ceiling, orgroundwork of common plaster on the wall or ceiling. The glue serves tohold the mate rial from setting, and the admixture of marbledust to thecompound gives the white and attractive appearance thereto. In lieu ofusing the marble-dust and the whiting, Keenes cement in sufficientquantity may be substituted therefor in proportion equal to the combinedquantity of the whiting and marble-dust.

In applying my compound to the wall or ceiling a groundwork or base ofplaster-ofparis, sand, whiting, and glue is first applied with a floatand allowed to set. Then, to finish off or face up with, dentalplaster,mixed in the same proportion as the base with sand, glue, marble-dust,and Keenes cement, is used to give a neat and attractive appearance.

My improved compound can be readily applied, and will adhere to commonmortar or other groundwork of a wall, and when it is applied to wirelathing it renders the inside of a building or structure fire-proof.

The exact proportions and quantities of the ingredients will be variedor changed according to the state or the condition of the walls uponwhich it is to be applied and the quality of the sand used.

The proportions of the plaster'of-paris, glue, marble-dust, and whitingor Keenes cement herein specified sufficient to finish one hundred yardsof surface is five-sixths of a barrel of plaster-of-paris, (commom)one-sixth of a barrel of plaster-of-paris, (dentah) one-eighth yard ofsand, forty pounds of whiting or Keenes cement, and three pounds whiteglue.

My improved compound is a very durable and hard finish, is proof againstand will withstand the action of moisture and frost, can be readilyapplied to a wall regardless of its condition and the state of theweather, will not crack, swell, chip, or shrink, can be cleansed withbrush and water without damaging or defacing the surface of the wall,and can be executed upon stucco groundwork, so that rats or other vermincannot penetrate the wall to which it is applied.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The herein-described composition of matter for finishing walls orceilings, consisting of a vehicle of plaster-of-paris, sand, glue,whiting or Keenes cement, and, if desired, a suit- In testimony that Iclaim the foregoing as able coloring-matter,substantially as set forth.my own I have hereto affixed my signature in 10 2. Theherein-(lescribedcomposition of matpresence of two witnesses.

ter for coating and finishing Walls, consisting ENDS AGUSTUS BRONSON ofa suitable vehicle of plaster-of-paris, sand,

glue, Spanish Whiting or Keenes cement, and \Vit-nesses: marble-dust, insubstantially the proportions JOHN WV. PAGE, specified. E. E. SANFORD.

